Vintage Blue and Aurora Rhinestone Necklace 16.5 store Inch

Stunning and sparkling blue and blue aurora rhinestone necklace, unsigned but quality says to me possibly Juliana or unsigned Sherman. All the stones are store prong set in silver tone settings and the clasp is a hinged clip. Measures 14" with an extra 21/2" extension. There are no missing or damaged stones, there is a prong missing on one of the stones in the circle. Spectacular.